Bisley SP4 Side-Mounted Spirit Level for Scope Mounts brand_-Warne Installation is straightforward: the standard

Installation is straightforward: the standard M5 clamp screw is replaced with a shorter M5 screw supplied in the kit

and this one protects the larger 85mm objective

and a self-healing heavy-duty zip protected by a Weather Shield Guard

sensibly priced bit of kit from a brand with a long history in UK shooting sports

The colour-changing beads run from orange to green as they take up moisture

Bisley SP4 Side-Mounted Spirit Level for Scope Mounts brand_-Warne Installation is straightforward: the standardThe Bisley SP4 is a side mounted spirit level kit made in the UK by Sportsmatch, designed to eliminate rifle cant and improve accuracy at longer ranges. It fits all Sportsmatch dovetail scope mounts that use M5 dovetail clamp screws the larger side screws on the mount base. Installation is straightforward: the standard M5 clamp screw is replaced with a shorter M5 screw supplied in the kit, and the spirit level unit threads in to the same hole. The